try with typical wall blocks or Covintec or drywalls (durock or densglass).
Prefab walls are thin and do not allow heat insulation.
This prefab walls are ok for fences or storage.
I would recommend another system, specially in this tropical weather.

hi everyone.
I have experience designing houses with that system on the coast of Guanacaste and Ballena.
We used most of all for easy transport in properties with difficult access and especially for the thermal insulation resulting in very hot conditions.
I recommend it 100%